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Download MBBS Extrahepatic Biliary Apparatus Lecture PPT

Download MBBS (Bachelor of Medicine and Bachelor of Surgery) Latest Extrahepatic Biliary Apparatus Lecture PPT

This post was last modified on 30 November 2021

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INTRAHEPATIC

BILIARY SYSTEM

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NOT

OUR BUISNESS


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EXTRAHEPATIC BILIARY APPARATUS

Consists of :

1. Rt. hepatic duct

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2. Lt. hepatic duct

3. Com. hepatic duct

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4. Cystic duct

5. Com. Bile duct

6. Gallbladder

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HEPATIC DUCTS

? Emerge from

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porta hepatis

? Rt. & Lt. HDs

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unite to form

Common Hepatic

Duct(CHD)

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? CHD =4 cm

? CHD descend in

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lesser omentum

? Joined by cystic

duct to form CBD

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GALL BLADDER

Pear shape

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?7-10 cm in length

?Up to 50 Ml

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?In the gallbladder

fossa on the visceral

surface of the liver

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Gall Bladder(Parts)

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?Fundus

?Body

?Neck

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?Infundibulum

(Hartmann's pouch)

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Surface projection of

fundus: Right linear

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semilunaris// right costal

margin = Murphy's point


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RELATIONS OF

GALLBLADDER:

ANTERIORLY:

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? Ant. Abdominal wall

? Inferior surface of

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liver

POSTERIORLY:

? Transverse colon

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? 1st & 2nd

duodenum

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CYSTIC DUCT

? 3.8 cm

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? Somewhat S shaped

? Its mucous membrane

is forming a spiral fold

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( the spiral valve )


CALOT'S TRIANGLE

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Moynihan's hump


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BLOOD SUPPLY:

?ARTERIAL :

Cystic artery

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? VENOUS :

Cystic vein

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? LYMPHATICS :

A cystic LN at the neck

of GB

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? NERVES :

Autonomic from

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coeliac plexus

Cholecystokinin


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BILE DUCT/COMMON BILE DUCT

? 8cm(3 inch) long &

about 6mm in dia.

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? 1st course (Lesser

Omentum)

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? 2nd course

(behind 2nd Duo.)

? 3rd course ( post.

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To head of

pancreas )

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Blood supply of Bile Duct


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SPHINCTERS
Clinical points:

? Gallstones

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? Biliary colic (epigastric pain, jaundice &

pancreatitis)

? Acute cholecystitis & referred pain to

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shoulder

? Cholecystectomy ( variations )

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? Gangrenous ( single arterial supply )

? Biliary atresia
Imaging of the Biliary Tract

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1. Cholecystography
2. Ultrasound
3. Endoscopic Retrograde

Cholangiopancreatography(ERCP)

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4. Magnetic Resonance

Cholangiopancreatography(MRCP)

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Endoscopic retrograde

Magnetic resonance

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cholangiopancreatography(ERCP)

cholangiopancreatography(MRCP)